Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-01-25
2005-01-25
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S795000, C343S797000
Reexamination Certificate
active
06847328
ABSTRACT:
An antenna element includes a section which is electrically non-conductive, a plurality of electrically conductive patches on the section which each face in a predetermined direction, a feed arrangement electrically coupled to the patches, and an annular strip of conductive material supported on the section and extending around the patches free of electrical contact therewith. A plurality of these antenna elements can be used to form an array, where one of the antenna elements has several other antenna elements provided at spaced locations around it. Each antenna element can include, on a side of the section opposite from the patches, an electrically-conductive portion with a cavity which faces the section.
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Eason Steven D.
Libonati Russell W.
Baker & Botts L.L.P.
Chen Shih-Chao
Raytheon Company
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